Application of Small-Sized SMES in an EV Charging Station With DC Bus and PV System

Liu, Yang; Tang, Yuejin; Shi, Jing; Shi, Xiaohan; Deng, Jing; Gong, Ke

doi:10.1109/tasc.2014.2374174

Cited by 66 publications

(32 citation statements)

References 17 publications

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“…The PV array is used to deliver the maximum value of 100 kW at 1000 W/m 2 sun irradiance; the I-V characteristic and P-V characteristic can be shown in Figure 6; a boost converter (orange blocks) is used for increasing voltage from PV natural voltage (272 V DC at maximum power) to 500 V DC; Switching duty cycle is optimized by the MPPT controller; The voltage source converter (VSC) converts the 500 V DC to 260 V AC and keeps unity power factor; a 10 kvar capacitor bank is used for filtering harmonics produced by the VSC; a 200 kVA, 260 V/10.5 kV three-phase CT is used for connecting the PV generation system to the utility grid. Concerning the parameters of the SFCL and the SMES, they have not been optimized further, and their selection is done according to [64,65]. From the literatures [64,65], the parameters of the two superconducting devices should have certain ranges, which are determined by their Energies 2017, 10,56 Concerning the parameters of the SFCL and the SMES, they have not been optimized further, and their selection is done according to [64,65].…”

Section: Modeling and Parametersmentioning

confidence: 99%

“…Concerning the parameters of the SFCL and the SMES, they have not been optimized further, and their selection is done according to [64,65]. From the literatures [64,65], the parameters of the two superconducting devices should have certain ranges, which are determined by their Energies 2017, 10,56 Concerning the parameters of the SFCL and the SMES, they have not been optimized further, and their selection is done according to [64,65]. From the literatures [64,65], the parameters of the two superconducting devices should have certain ranges, which are determined by their application voltage grade and current capacity.…”

Section: Modeling and Parametersmentioning

confidence: 99%

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Coordinated Control of Superconducting Fault Current Limiter and Superconducting Magnetic Energy Storage for Transient Performance Enhancement of Grid-Connected Photovoltaic Generation System

Chen

Yang

et al. 2017

Energies

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Abstract:In regard to the rapid development of renewable energy sources, more and more photovoltaic (PV) generation systems have been connected to main power networks, and it is critical to enhance their transient performance under short-circuit faults conditions. This paper proposes and studies the coordinated control of a flux-coupling-type superconducting fault current limiter (SFCL) and a superconducting magnetic energy storage (SMES), to improve the fault ride through (FRT) capability and smooth the power fluctuation of a grid-connected PV generation system. Theoretical analyses of the device structure, operating principle and control strategy are conducted, and a detailed simulation model of 100 kW class PV generation system is built in MATLAB/SIMULINK. During the simulations of the symmetrical and asymmetrical faults, the maximum power point tracking (MPPT) control is disabled, and four different cases including without auxiliary, with SFCL, with SMES, and with SFCL-SMES, are compared. From the demonstrated results, the combination of without MPPT and with SFCL-SMES can more efficiently improve the point of common coupling (PCC) voltage sag, inhibit the DC-link overvoltage and alleviate the power fluctuation. Finally, a preliminary parameter optimization method is suggested for the SFCL and the SMES, and it is helpful to promote their future application in the real PV projects.

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Section: Modeling and Parametersmentioning

confidence: 99%

Section: Modeling and Parametersmentioning

confidence: 99%

Coordinated Control of Superconducting Fault Current Limiter and Superconducting Magnetic Energy Storage for Transient Performance Enhancement of Grid-Connected Photovoltaic Generation System

Chen

Yang

et al. 2017

Energies

Self Cite

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“…Other advantages consist of fast response and wide power range, as well as long lifespan. Nevertheless, SMES is very expensive due to the high costs of both superconductors and cryogenic system; thus, although it has been recently tested for power quality and voltage stabilization in both transmission and distribution systems, it is still employed in military applications mostly [18][19][20]. The main advantages of UCs are high-power capability, quite long life cycle and no memory effect, but they cannot store great amount of energy unless big and costly UC modules are used.…”

Section: Introductionmentioning

confidence: 99%

A Novel Highly Integrated Hybrid Energy Storage System for Electric Propulsion and Smart Grid Applications

Serpi¹,

Porru²,

Damiano³

2018

Advancements in Energy Storage Technologies

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This chapter addresses potentialities and advantages of a highly integrated hybrid energy storage system (HESS) for electric propulsion and smart grids. This configuration consists of a highly integrated battery-ultracapacitor system (HIBUC) and aims to benefit from the advantages of both passive and active HESS configurations. Particularly, the integration of the ultracapacitor module (UM) within the DC-link of the DC/AC multilevel converter enables the decoupling between DC-link voltage and energy content without the need for any additional DC/DC converter. As a result, HIBUC benefits from simplicity and energy flow management capabilities very similar to those achieved by passive and active HESS configurations, respectively. This is highlighted properly by a theoretical analysis, which also accounts for a comparison between HIBUC and both passive and active HESS configurations. Some HIBUC application examples are also reported, which highlight the flexibility and potentialities of HIBUC for both electric propulsion systems and smart grids.

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“…An original PEV charging station topology based on PV system, superconducting magnetic energy storage, and the public grid is presented in [24]. All these components are respectively connected to a common DC bus with the corresponding converters.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of DC Microgrids for Electric Vehicle Charging Stations

Locment

Sechilariu

2015

Energies

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This paper focuses on the evaluation of theoretical and numerical aspects related to an original DC microgrid power architecture for efficient charging of plug-in electric vehicles (PEVs). The proposed DC microgrid is based on photovoltaic array (PVA) generation, electrochemical storage, and grid connection; it is assumed that PEVs have a direct access to their DC charger input. As opposed to conventional power architecture designs, the PVA is coupled directly on the DC link without a static converter, which implies no DC voltage stabilization, increasing energy efficiency, and reducing control complexity. Based on a real-time rule-based algorithm, the proposed power management allows self-consumption according to PVA power production and storage constraints, and the public grid is seen only as back-up. The first phase of modeling aims to evaluate the main energy flows within the proposed DC microgrid architecture and to identify the control structure and the power management strategies. For this, an original model is obtained by applying the Energetic Macroscopic Representation formalism, which allows deducing the control design using Maximum Control Structure. The second phase of simulation is based on the numerical characterization of the DC microgrid components and the energy management strategies, which consider the power source requirements, charging times of different PEVs, electrochemical storage ageing, and grid power limitations for injection mode. The simulation results show the validity of the model and the feasibility of the proposed DC microgrid power architecture which presents good performance in terms of total efficiency and simplified control. OPEN ACCESSEnergies 2015, 8 4336

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Application of Small-Sized SMES in an EV Charging Station With DC Bus and PV System

Cited by 66 publications

References 17 publications

Coordinated Control of Superconducting Fault Current Limiter and Superconducting Magnetic Energy Storage for Transient Performance Enhancement of Grid-Connected Photovoltaic Generation System

Coordinated Control of Superconducting Fault Current Limiter and Superconducting Magnetic Energy Storage for Transient Performance Enhancement of Grid-Connected Photovoltaic Generation System

A Novel Highly Integrated Hybrid Energy Storage System for Electric Propulsion and Smart Grid Applications

Modeling and Simulation of DC Microgrids for Electric Vehicle Charging Stations

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